Although the iPhone 4’s quadruple-density Retina Display is getting all the press these days, Samsung’s own Super AMOLED technology — as seen on their attractive Galaxy S smartphone — is no slouch either. They boast improved outdoor visibility and reduced power consumption as well as crisper graphics than plain old AMOLED.

Unfortunately, Samsung’s ability to produce them so far has been limited to small numbers, which have then been provisioned to their own showcase products. But that’s going to change. The good news is that Super AMOLED displays will be coming to even more smartphones next year, thanks to Samsung’s plans to open a 5.5 generation Super AMOLED plant in July 2011.

According to Samsung, the new facility will significantly up their potential output of Super AMOLED displays to an impressive 70,000 13 x 15 cm sheets per month.

That works out to about 30 million 3-inch mobile device displays, but Samsung’s not aiming for those: they seem to believe that the larger 4-inch display seen on the Galaxy S is the future go-to size of smartphone displays, and are largely devoting the plant to their production, although they aren’t ruling out the possibility of 42-inch HDTVs as well.

It’s hard to tell what to make of this move: Apple’s significantly upped the ante with their Retina Display, and while Super AMOLED displays are viable (and attractive) alternatives, my guess is that the 4-inch form factor isn’t going to win out in the smartphone market in the end. No one really wants a bigger phone in their pockets, after all.